BASIC TO XTREME
POWERSPORTS
SERVICE.
Snowmobiles. Sea-Doos. ATVs. UTVs. Boats. Year-round expert service & repair — backed by a perfect 5.0 Google rating.
5.0 · 11 Google reviews
7+ Years
Trusted by riders
Year-Round
Availability
What we do
Built for every machine. Every season.
From a basic oil change to a full engine teardown — Jeremy and the MJC Xtreme team handle it all under one roof.
Snowmobile
Pre-season prep, clutch, suspension, tracks, top-end & full rebuilds. Ski-Doo, Polaris, Arctic Cat and Yamaha.
Sea-Doo & Marine
Certified Mercury MerCruiser tech. Supercharger rebuilds, jet pump, impellers, winterization & spring prep.
ATV & UTV
Honda, Arctic Cat, Yamaha, Polaris, Can-Am & more — diagnostics, suspension, drivetrain, electrical and trail tune-ups.
ECM Scanning
Factory-grade BRP & Polaris diagnostics, flashes & fault clearing other shops can't run.
Turbo & Performance
Sea-Doo turbo kits with Hurricane Performance & Precision Sports. Clutch kits, gearing, full tuning.
Pickup & Delivery
We pick up your machine, quote it, repair it, and deliver it back — all without you lifting a wrench.
Older Machines Welcome
Dealers turning you away on 10+ year old machines? Bring it to us — we'll get it running right.
Year-Round Service
Open every season. No waiting until spring to get the job done right.
Sea-Doo turbo kits. Built to rip.
We build BRP Sea-Doo turbo performance kits using top-tier parts from Hurricane Performance and Precision Sports — two of Canada's leading names in powersports performance.
Clutch kits, gearing, ECU tuning, full bolt-on builds — whatever you need to wake the machine up, we'll spec it, source the parts, install it and dial it in right.
- BRP Sea-Doo turbo kit installs
- Clutch kits & re-clutching
- Gearing changes
- ECU tuning & flashes
- Full bolt-on performance builds
- Diagnostic dyno-style testing
+HP
Built & Tuned
Pickup & delivery. We handle the haul.
No truck? No trailer? No problem. We pick up your machine, repair it, and deliver it back — anywhere in Simcoe County and the surrounding area.
01
We come to you
Book a pickup and we'll grab your Sea-Doo, ATV, sled, UTV or trailer right from your driveway.
02
Full inspection & quote
Back at the shop we diagnose the issue and send you a clear, no-pressure quote before any work begins.
03
Repair done right
Jeremy and the team handle the repair with factory-grade tools, parts and BRP / Polaris expertise.
04
Delivered back home
Once it's dialed in, we deliver it back to you — ready to ride. No trailer, no hassle.
5.0★
Google Rated
About MJC Xtreme
Jeremy's shop. Riders' trust.
Founded and run by Jeremy, MJC Xtreme Powersports has been the go-to repair shop for snowmobile, ATV, UTV and marine owners across Simcoe County and Area for years.
Specializing in BRP and Polaris, and a certified Mercury MerCruiser tech — we handle routine maintenance to complex repairs other shops won't touch. ECM scanning, flashes, custom shock work and full performance builds. Got a 10+ year old machine the dealer won't look at? Bring it in.
- Specialty
- BRP · Polaris · MerCruiser
- Availability
- Year-Round
- Service Area
- Simcoe County & Area
- Reviews
- 5.0 ★ Google
What riders say
5.0 on Google.
Earned, not asked for.
"I found Jeremy 7 years ago when I bought my first used sled. Over Christmas the clutch went and no one would look at it until end of January — then I saw MJC Xtreme. Jeremy said 'bring it in.'"
Andrew Jackson
Verified Google Review
"Found Jeremy in 2020 when I bought my first set of sleds. He's handled all my annual maintenance, repairs, and even my sled trailer."
Christopher Cameron
Verified Google Review
"I recently dropped my Sea-Doo Trixx off for maintenance with Jeremy. Highly recommend — very professional and he really knows his stuff!!"
Ryan Leece
Verified Google Review
"Jeremy does a great job servicing my ATV and Snowmobile for yearly services as well as repairs that have come up."
Andrew
Verified Google Review
"Great service and very knowledgeable about sleds. Shocks are awesome!"
Robert Chadwick
Verified Google Review
"I've been taking my stuff here for a couple of years and multiple machines. Best mechanic around — always done right."
Zack Parravano
Verified Google Review
In the shop · On the trail
From our garage to your adventure.
Book a service
Get your machine dialed in.
Fill out the form and we'll confirm your appointment within one business day. Prefer to talk? Call Jeremy directly.
- Free, no-pressure quote
- BRP & Polaris certified expertise
- Year-round availability
- 5.0★ rated by local riders
Get in touch
Visit the shop.
Serving Simcoe County and surrounding Ontario riders. Contact for booking and quotes.
Address
2858 25th Side Rd, Innisfil, ON, Canada
Phone
(705) 345-9012Hours
Mon – Fri · Closes 5 p.m.
Call ahead for weekend / after-hours
Facebook
facebook.com/mjcxtreme